Fix painting glitch with text and NPAPI plugins. This was a regression from r167042. The problem wa…

content/plugin/webplugin_delegate_stub.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/plugin/webplugin_delegate_stub.h"
 
 #include "build/build_config.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "content/common/plugin_messages.h"
 #include "content/plugin/plugin_channel.h"
 #include "content/plugin/plugin_thread.h"
 #include "content/plugin/webplugin_proxy.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
 #include "third_party/npapi/bindings/npapi.h"
 #include "third_party/npapi/bindings/npruntime.h"
 #include "skia/ext/platform_device.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCursorInfo.h"
+#include "webkit/plugins/npapi/plugin_instance.h"
 #include "webkit/plugins/npapi/webplugin_delegate_impl.h"
 #include "webkit/glue/webcursor.h"
 
 using WebKit::WebBindings;
 using WebKit::WebCursorInfo;
 using webkit::npapi::WebPlugin;
 using webkit::npapi::WebPluginResourceClient;
 
 namespace content {
 
@@ skipping 108 matching lines @@
 
   DCHECK(handled);
   return handled;
 }
 
 bool WebPluginDelegateStub::Send(IPC::Message* msg) {
   return channel_->Send(msg);
 }
 
 void WebPluginDelegateStub::OnInit(const PluginMsg_Init_Params& params,
+                                   bool* transparent,
                                    bool* result) {
   page_url_ = params.page_url;
   GetContentClient()->SetActiveURL(page_url_);
 
+  *transparent = false;
   *result = false;
   if (params.arg_names.size() != params.arg_values.size()) {
     NOTREACHED();
     return;
   }
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   base::FilePath path =
       command_line.GetSwitchValuePath(switches::kPluginPath);
 
   webplugin_ = new WebPluginProxy(
       channel_, instance_id_, page_url_, params.host_render_view_routing_id);
   delegate_ = webkit::npapi::WebPluginDelegateImpl::Create(path, mime_type_);
   if (delegate_) {
     webplugin_->set_delegate(delegate_);
     std::vector<std::string> arg_names = params.arg_names;
     std::vector<std::string> arg_values = params.arg_values;
 
     *result = delegate_->Initialize(params.url,
                                     arg_names,
                                     arg_values,
                                     webplugin_,
                                     params.load_manually);
+    *transparent = delegate_->instance()->transparent();
   }
 }
 
 void WebPluginDelegateStub::OnWillSendRequest(int id, const GURL& url,
                                               int http_status_code) {
   WebPluginResourceClient* client = webplugin_->GetResourceClient(id);
   if (!client)
     return;
 
   client->WillSendRequest(url, http_status_code);
@@ skipping 205 matching lines @@
 }
 
 #if defined(OS_MACOSX)
 void WebPluginDelegateStub::OnSetFakeAcceleratedSurfaceWindowHandle(
     gfx::PluginWindowHandle window) {
   delegate_->set_windowed_handle(window);
 }
 #endif
 
 }  // namespace content